Runware

Generative AI platform with fast inference

Fabricator - Prototyping

Welding & Metal FabricationConfirmed live in the last 24 hours

Full-timeBucharest, RomaniaNo salary listed

About the Job

Requirements

Must be based in Bucharest or the Bucharest–Ilfov metropolitan area and able to work on-site.
Have at least 3 years of hands-on experience in fabrication, machining, or a prototype workshop.
Have proven experience with numerical-control-based fabrication and CNC machining, including G-code and CAM programming such as Fusion 360, Mastercam, or SolidCAM.
Have experience setting up and running automated or robotic welding systems, with manual MIG/TIG skills on steel, stainless steel, and aluminium.
Have experience assembling prototypes from drawings, including mechanical fit-up, fastening, and basic electrical wiring.
Be able to read technical drawings, GD&T, and weld symbols, and work to tight tolerances.
Be confident using precision measuring tools and basic quality documentation.
Have a vocational or technical qualification in machining, welding, or mechanical engineering, or equivalent experience.
Be fluent in Romanian and English; technical documentation is in English.
Submit a portfolio; applications without one will not be considered.

Responsibilities

Set up, program, and operate CNC mills, lathes, and other numerically controlled equipment from 2D drawings and 3D CAD models.
Program, set up, and run automated and robotic welding cells (MIG/TIG), including fixture design and parameter tuning.
Assemble mechanical and electromechanical prototypes, sub-assemblies, and test rigs to specification.
Read and interpret engineering drawings, GD&T callouts, weld symbols, and bills of materials.
Inspect parts with calipers, micrometers, height gauges, and other metrology tools, and document results.
Build jigs, fixtures, and tooling to speed up repeat fabrication.
Give engineers early feedback on manufacturability, tolerances, material choice, and cost.
Maintain machines and tools, and keep the workshop safe, clean, and organised.
Track material usage and help manage stock, consumables, and supplier orders.
Follow health, safety, and environmental rules for machining, welding, and pressure work.
Machine, weld, and assemble prototype components, then help refine them through build-test-iterate cycles.
Own fabrication quality from raw stock to finished assembly and provide manufacturability feedback to inform design revisions.

Desired Qualifications

Have experience fabricating components for high-pressure systems, including piping, manifolds, vessels, or fittings, and conducting leak and pressure testing.
Have experience with refrigeration or HVAC-R components, including copper and stainless tubing, brazing, flaring, swaging, and heat exchangers.
Be familiar with pressure equipment standards such as PED 2014/68/EU and ASME, and ISCIR requirements in Romania.
Hold welder certification to ISO 9606 or equivalent, or refrigerant handling (F-gas) certification.
Have CAD skills with SolidWorks, Fusion 360, or similar tools to adjust parts and design fixtures.
Have experience with sheet metal processes such as laser or waterjet cutting and press brakes, or additive manufacturing.
Have experience in a startup or R&D environment with fast-changing priorities.

Fabricator (Prototyping)

Runware · Bucharest, Romania · Full-time · Posted 2026-11-04

Workplace: on_site

Department: Hardware Team

Description

Runware develops AI infrastructure and modular data centres. We are hiring a hands-on Fabricator (Prototyping) to turn engineering designs into working prototype hardware using CNC machining, automated welding and precision assembly.
This role is for someone who enjoys owning the engineering: performing the calculations, making consequential design decisions, producing the documentation needed to build equipment, and proving its performance through testing.

About the role

You will be the person who makes our next generation designs real. Working closely with mechanical and systems engineers, you will machine, weld and assemble prototype components, then help refine them through fast build-test-iterate cycles.

The work spans one-off parts to small pilot runs. You will own fabrication quality from raw stock to finished assembly, and your feedback on manufacturability will shape the next design revision.

Key responsibilities

Set up, program and operate CNC mills, lathes and other numerically controlled equipment from 2D drawings and 3D CAD models.
Program, set up and run automated and robotic welding cells (MIG/TIG), including fixture design and parameter tuning.
Assemble mechanical and electromechanical prototypes, sub-assemblies and test rigs to specification.
Read and interpret engineering drawings, GD&T callouts, weld symbols and bills of materials.
Inspect parts with calipers, micrometers, height gauges and other metrology tools; document results.
Build jigs, fixtures and tooling that speed up repeat fabrication.
Give engineers early feedback on manufacturability, tolerances, material choice and cost.
Maintain machines and tools, and keep the workshop safe, clean and organised. Track material usage and help manage stock, consumables and supplier orders. Follow health, safety and environmental rules for machining, welding and pressure work.

Requirements

Based in Bucharest or the Bucharest–Ilfov metropolitan area and able to work on-site.
3+ years of hands-on experience in fabrication, machining or a prototype workshop.
Proven experience with numerical control (NC) based fabrication and CNC machining, including G-code and CAM programming (e.g. Fusion 360, Mastercam, SolidCAM).
Experience setting up and running automated or robotic welding systems, plus solid manual MIG/TIG skills on steel, stainless steel and aluminium.
Experience assembling prototypes from drawings, including mechanical fit-up, fastening and basic electrical wiring.
Ability to read technical drawings, GD&T and weld symbols, and to work to tight tolerances.
Confident use of precision measuring tools and basic quality documentation.
Vocational or technical qualification in machining, welding or mechanical engineering, or equivalent experience.
Fluent Romanian and English (technical documentation is in English).

Nice to have

Experience fabricating components for high-pressure systems: piping, manifolds, vessels or fittings, including leak and pressure testing.
Experience with refrigeration or HVAC-R components: copper and stainless tubing, brazing, flaring and swaging, heat exchangers.
Familiarity with pressure equipment standards (e.g. PED 2014/68/EU, ASME) and ISCIR requirements in Romania.
Welder certification to ISO 9606 or equivalent; refrigerant handling (F-gas) certification.
CAD skills (SolidWorks, Fusion 360 or similar) to adjust parts and design fixtures.
Experience with sheet metal (laser or waterjet cutting, press brake) or additive manufacturing.
Experience in a startup or R&D environment with fast-changing priorities.

Benefits

Competitive salary
Real ownership: your builds go straight into prototypes and pilot hardware.
A modern workshop and budget for the tools the job needs.
Training and certification support (welding, pressure equipment, F-gas).
A small, technical team where your input changes the design.

Applications without a portfolio will not be considered.

Apply

Apply at Runware

About the Company

Runware

Generative AI platform with fast inference

Runware.ai provides a fast, cost-effective platform to deploy AI-generated content through an API that hides infrastructure complexity. It runs AI workloads on custom hardware in renewable-energy data centers using the Sonic Inference Engine, with real-time WebSocket connections for low-latency, scalable performance. It differentiates itself with a proprietary engine, dedicated hardware, built-in redundancy, autoscaling, GPU allocation, and access to over 188,000 models, enabling seamless integration without ML expertise. Its goal is to democratize access to generative AI for businesses by making it easy to add AI capabilities without heavy hardware costs or specialized know-how.

Company size: 51-200
Company stage: Series A
Total funding: $66M
Headquarters: London, United Kingdom
Founded: 2023

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